Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/DftY/Button_Whitaker.abc/1809"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Coll_29755.log 451408 Log file, useful mostly for debugging
Tune-29755-1809.abc 157 ABC music file with the extracted tune(s)
Tune-29755-1809.txt 157 Plain-text file with the extracted tune(s)
Tune-29755-get.log 3101 Log file, useful mostly for debugging
These files should be available for 24 hours.